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http://dx.doi.org/10.5658/WOOD.2010.38.4.349

Factors Affecting Acer mono Sap Exudation : (II) Hamyang Region in Korea  

Choi, Won-Sil (Division of Green Business Management, Department of Forest Resources Utilization, Korean Forest Research Institute)
Park, Mi-Jin (Division of Green Business Management, Department of Forest Resources Utilization, Korean Forest Research Institute)
Kim, Ho-Yong (Department of Forest Sciences, College of Agriculture & Life Sciences, Seoul National University)
Choi, In-Gyu (Department of Forest Sciences, College of Agriculture & Life Sciences, Seoul National University)
Lee, Hak-Ju (Division of Green Business Management, Department of Forest Resources Utilization, Korean Forest Research Institute)
Kang, Ha-Young (Division of Green Business Management, Department of Forest Resources Utilization, Korean Forest Research Institute)
Publication Information
Journal of the Korean Wood Science and Technology / v.38, no.4, 2010 , pp. 349-358 More about this Journal
Abstract
This study was carried out to investigate the optimum condition for sap exudation of Acer mono Max. tree in a site of Mt. Jiri, Hamyang-gun, Korea. Amount of sap exudation, air temperature, relative air humidity, tree diameter at breast height (DBH) and sugar content in sap were monitored during the early springtime, and correlation analysis of several factors was carried out to explain tree-to-tree and date-to-date variations in sap exudation. The correlation, linearlyassociated between DBH and sap amount, was strengthened as daily amount of sap increased, but there was no significant tree-to-tree variation in time and period for sap exudation. When amount of sap exudation was above 10 liter/day, the mean air-temperature was averaged at $1.2{\pm}1.6^{\circ}C$, the minimum at $-4.3{\pm}1.5^{\circ}C$ and the maximum at $11.8{\pm}1.9^{\circ}C$. The maximum air temperature and mean air temperature were significant (p < 0.05) factors for amount of sap in correlation analysis to explain date-to-date variation in sap exudation. Sucrose content in sap was in the range of 1.5 and 1.7% during exudation days, but sharply reduced to 0.6% level at the end of exudation period.
Keywords
Acer mono; sap; exudation; DBH; air temperature; sucrose;
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Times Cited By KSCI : 2  (Citation Analysis)
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